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gbj_tester
Tonts
Thanks for the info! 12-28 would work. Current cassette is a little heavy work off road.
I had looked at this: https://www.sjscycles.co.uk/cassettes/1128-sunrace-nickel-7-speed-cassette/
And this:
https://www.sjscycles.co.uk/chains/kmc-z7-332-inch-7-speed-chain-grey-brown-114-links/
Would they work? Is sunrace rubbish?